We loved our stay in Cala Piccola!
The views are breath taking - the condo faces west for unbelievable sunsets each night, and the condo is even nicer than what is in the pictures (There is now a nice refrigerator, air conditioning, and clothes and dish washers).
We had an amazing vacation at Massimo's condo. The Condo is exactly as is in the pictures (except a little better in my opinion, see above). As a renter of the condo, you are essentially on the grounds of a nice boutique hotel and have access to all hotel amenities (pool, towels, beach club, formal restaurant for breakfast/dinner, and restaurant/bar for lunch and cocktails that sits on a cliff overlooking the sea).
The highlight for us was definitely the beach club, which is about a 3 min drive down the mountain.
The apartment is clean and has modern appliances. The beds are not comfortable and the owner could stand to get a set of new towels. FYI there is no crib if you're bringing an infant as we did (consistent with the listing not mentioning a crib)
Overall, we loved our stay, we plan to come back to Argentario as soon as we can and would definitely stay at this rental again.